Pellet Stove Limit Thermostat for Lennox, 20160, H5891

Pellet Stove Limit Thermostat | Replaces 20160 / H5891 | 2-Terminal 

Brand New – OEM-Style High Limit Thermostat for Lennox® Pellet Stoves

Protect your pellet stove from overheating with this replacement limit thermostat switch, part H5891. Featuring two 1/4" male terminal connections, this snap disc thermostat opens on temperature rise to shut down the stove or blower when internal temperatures exceed safe limits. Ideal for resolving shutdown issues, blower malfunctions, or safety lockouts.

⚙️ Product Features:

• ✅ Two 1/4" male spade terminals
• ️ Opens on temperature rise to prevent overheating
• Standard mounting configuration for easy replacement
• Condition: Brand New – Unused
• OEM-style fit for Lennox® pellet stove systems

Replaces Part Numbers:

20160, H5891

✅ Compatible Models:

Lennox® / Whitfield® Pellet Stoves: Commonly used in models such as Winslow PS40, Winslow PI40, Optima 2, Optima 3, and Traditions series. Fits additional units using 20160 / H5981-style high limit thermostats. Please verify your model number and thermostat specs before purchase.

Common Fixes:

• ❌ Stove shuts down unexpectedly during operation
• ⚠️ Blower fails to activate or cuts out intermittently
• Error codes related to high temperature or thermal limit
• Replacement for stuck, open, or failed snap disc switch

️ Installation Tips:

• Disconnect power before servicing appliance
• Locate thermostat near heat exchanger or blower housing
• Remove mounting screws and disconnect terminals
• Install new switch, reconnect wires, and secure with screws
• ✅ Restore power and test for proper blower and safety function

Overheat protection. Safe operation. OEM-style limit thermostat – part H5891.